The contractor responsible for vetting Edward Snowden in 2011, already under a criminal investigation for "routine" background check failures, was also responsible for vetting Washington Navy Yard gunman Aaron Alexis in 2007. After initially denying involvement, USIS did some digging and discovered that it did, in fact, run the background check for Alexis's secret-level clearance.

"Today we were informed that in 2007, USIS conducted a background check of Aaron Alexis...We are contractually prohibited from retaining case information gathered as part of the background checks we conduct for OPM and therefore are unable to comment further on the nature or scope of this or any other background check.”

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